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Malicious package

computerrock-babel-preset-react-appnpm

Advisory published Updated

computerrock-babel-preset-react-app is a confirmed malicious npm package (MAL-2026-6131) that steals credentials and exfiltrates sensitive data (malicious version 15.12.11). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in computerrock-babel-preset-react-app (npm)

MAL-2026-6131
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall computerrock-babel-preset-react-app

What this malware does

The package impersonates the well-known babel-preset-react-app under a fake org-style prefix and ships no Babel preset code. package.json declares "preinstall": "node index.js", which runs automatically on npm install. index.js collects hostname, platform, arch, homedir, username/uid/gid/shell, OS info, current working directory, and the output of whoami and id, then POSTs the JSON payload to a hardcoded https://0bccssrkeubggq24k750nrw0erki88wx.oastify.com/detox56 URL (a Burp Collaborator out-of-band exfiltration host). The package's only function is reconnaissance and exfiltration of installer-side identifiers to an attacker-controlled host.

Malicious versions

1 flagged
15.12.11

Indicators of compromise (SHA-256)

8987a1638ceebfb3dc8c8fc29e8e696fa15c6fe667697dfc367f59bf56b14cfa

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for computerrock-babel-preset-react-app (version 15.12.11).

  2. If you installed it — respond

    computerrock-babel-preset-react-app is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If computerrock-babel-preset-react-app was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. computerrock-babel-preset-react-app on npm has been identified as a malicious package (version 15.12.11 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-006983

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks computerrock-babel-preset-react-app-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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computerrock-babel-preset-react-app (npm) malicious package — MAL-2026-6131 | O3 Security